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(No Model.) 2 Sheets-Sheet 1.-

J. FIELDING.

APPARATUS FOR SUSPENDING PORTABLE RIVETING MACHINES. No. 307,282.Patented Oct. 28, 1884.

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(No Model.)

2 Sheets-Sheet 2. J. FIELDING.

APPARATUS FOR SUSPENDING PORTABLE RIVBTING MACHINES.

Patented Oct. 28, 1884.

UNiTnn STATns PATENT (Enrica,

JOHN FIELDING, OF GLOUCESTER, COUNTY OF GLOUCESTER, ENGLAND.

APPARATUS FOR SUSPENDlNG PORTABLE RlVETlNG-MACHINES.

SPECIPICATIQN forming part of Letters Patent No. 307,282, dated October28, 1884:.

Application filed A pril I9, 1884. (No model.) Patented in England March25, 1852, No. 1,4351; in France September 8, 1882,

No. 151,016, and in Belgium September 1852, No. 518,971.

To all whom it may concern:

Be it known that I, JOHN FIELDING, of

Gloucester, in the county of Gloucester and Kingdom of Great Britain,have invented certain new and useful Improvements in Apparatus forSuspending Portable Riveting-lllachines; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable othersv skilled in the art to which it appertains tomake and use the same.

My invention relates to an apparatus for suspending portable machinesemployed for riveting and such like operations, the object being toobtainin a simple manner facilities for applying the tools of suchmachines at various points and in various directions, according to thework that they have to perform. To accomplish this end, I fit on atrunnion on either side of the machine, at or near its center ofgravity, asleevc, within which the trunnion can revolve, and to thesleeve I joint, by two parallel links like those of a parallel ruler, abar projecting beyond the links a distance such that its end is nearlyabove the center of the machine. The machine, being suspended by aswivel attached to the end of the bar, can be turned into variousattitudes, so that its tools can be presented at any required point andin any required direct-ion within the limits permitted by the jointing.In cases where the machine is worked by hydraulic or other fluidpressure, the fluid can be supplied through the trunnion, beingconducted thither along the bar and either of the links, which may forthat purpose be made tubular, or by a separate pipe with suitableswivel-joints.

In the accompanying drawings, Figure l is a view in side elevation ofone form of machine embodying my invention. Fig. 2 is an edge view ofanother form of machine, and Fig. 2 is aviewin side elevation of themachine shown in Fig. 2. Fig. 3is an end view of the links shown in Fig.and Fig. 4 is an enlarged view, in section, of the trunnion.

A represents a portable riveting-machine provided with a trunnion, A,formed on the back thereof nearly in the line of the center of gravityof the machine. This trunnion is embraced by a sleeve, 13, within whichthe trunnion is free to turn. This sleeve B is connected by two links, 0G, like those of a parallel ruler, to a beam, D, having at its end thesuspensiondink E, nearly in the line of the centor of gravity oftherlvefer. F is the valve-box, provided with the sup plypipe H and withthe discharge G, through which the exhaustwater passes. The lower end ofthe link 0 is provided with teeth arranged in the are of a circle, whichlatter mesh with the worm I, journaled to the sleeve B. Thus it will beseen that by turning the worm in one direction the rivetcr, by reason ofits weight, is permitted to turn, which elevates the link 0, while thejoint a is lowered, caus ing the two links and the beam D to assumeavertical position, with the free end of the beam 1) downward, as shownin dotted lines of Fig. 1. By reversing the motion of the worm theriveter can be turned in the opposite direction.

In Figs. 2 and 2 a slightly modified construction of parts is employedin connection with a different style of portable rivetingniacliine. Thisriveting-machine consists, essentially, of two levers pivoted together,one of said levers being provided at one end with a cylinder, M, and atits oppos te end with a riveting-tool, while the other lever is providedat one end with a plunger moving within the cylinder, and at itsopposite end with a riveting-to0l adapted to operate in conjunction withthe riveting-tool of the other lever. The links are connected to thesleeve 13 as before described, and the upper ends thereof are pivotallysecured to the hydraulic liftcylinder K, to be referred to further on.The actuating-fluid is supplied to the valve-box F by the pipe H, whichlatter is connected by means of packing-rings and nuts to the hollow armM formed on or with the sleeve 13. This hollow arm is in communicationwith the passageway M of the trunnion A by the port M. To the opl positeend of the trunnion A is connected the pipe H, which conveys the waterto the box F. In Fig. 2 I have dispensed with the beam D of Fig. 1, andemployed instead thereof the hydraulic lift-cylinder K, which latter isprovided with a plunger having a pulley, c, j ournaled to the outer endthereof. A chain, L, secured at one end to the cylinder of the lift,passes under pulley c and under pulley c at the opposite end of thelift, and from thence to a crane or other overhead support. In thisinstance the supply-pipe H passes downwardly alongside of the link 0 andcommunicates with the hollow trunnion through the ports M and M.

I11 the construction of parts shown in Fig. 2 the trunnion A is madefast to the sleeve B, and the riveter revolves on the said trunnion, butis held against accidental turning by a set screw.

From the foregoing it will be seen that by turning the screw Itheinclination or angle of the riveting-machine can be varied at pleasure,and by simply admitting water to the cylinder K behind the plunger themachine can be elevated.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The combination, with a portable riveting-machine provided with atrunnion, of a sleeve embracing one end ofsaid trunnion, and parallellinks pivotally connected at their lower ends to said sleeve, andpivotally connccted at their upper ends to a movable sup- 0 portingdevice.

2. The combination, with a portable riveting-machine provided with atrunnion, of parallel links pivotally secured at their lower ends to thesleeve, and pivotally secured at their upper ends to a hydraulic lift,substan 5 tially as set forth.

The combination, with a portable riveting-inachine provided with atrunnion, of a sleeve embracing the trunnion, parallel links pivoted attheir lower ends to the sleeve, and connected at their upper ends to ahydraulic lift, and the Worm and segmental gear, substantially as setforth.

4. In a hydraulic riveter, the combination of a portableriveting-machine provided with a hollow trunnion, the sleeve embracingsaid trunnion, the links pivotally secured at their lower ends to thesleeve and at their upper ends to a movable support, and pipesconnecting with the trunnion through which the actuating-fluid passes,substantially as set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

JOHN FIELDING.

Vitnesses:

JOHN A. Porn, H. CADEUNE.

